Jar-sealing and vacuum-releasing device.



no. 876591 I lATENTED JAN. 14, 1908. J. L. ROLLINS.

JAR SEALING AND VACUUM RELEASING DEVICE.

APPLIOATION FILED MAY 7, 1007. I

2 snnnTs-snmzw 1.

PATENTED JAN. 141, 1908.

, J. L. ROLLINS. JAB. sBALlNG AND VACUUM RELEASING DEVICE.

APPLICATION FILED MAY 7, 1907.

2 SHEETSSHBET 2.

ATTORNEY WITNESSES: W.

UNITED STATES PATENT OFFICE.

JARROT L. ROLLINS, OF COLFAX, CALIFORNIA.

JAR-SEALING AND'VACUUM-RELEASING DEVICE.

To all whom it may concern:

Be it known that I, JARROT L. RoLLINs,

citizen of the United States, residing at 001- fax, in' the county of Placer and State of California, have invented newand useful Improvements in J art-Sealing and Vacuum- Releasing Devices, of which the following is a specification.

My invention relates to a'means for hermetically sealing j ars, cans and like receptacles,'and for readily breakin or releasing the vacuum within the jar so t at it maybe opened without difliculty. v

It consists in the combination of parts, and in details of construction which will be more fully ex lained by reference to the ac- .companying rawings, in which of Fig. 4.

Figure 1 is a plan or top view of the can, its top and sealing device. Fig. 2 is-a vertical section of the same. Fig. 3 is a bottom plan view of a portion of the cover showing the passages 7. Fig. 4 shows .a device to seat the cord. Fig. 5 is a section on line accc Fig. 6 shows the cord with the sealing material attached, ready for application to the jar.

In hermetically sealing jars and like containers, such jars have grooves or channels around the periphery at'tlie top, and covers with flanges fit these grooves. Sealing ma terial such as solder or wax in various forms,

, is then introduced, while the air is expelled from the jar by heat, to seal the'jar and preserve its contents. Considerable difliculty is experienced in properly removing this sealing material, and admitting air, so that the cover can be readily removed to obtain access to thecontents' of the jar.

It is the object of my invention to provide an improved means whereby the sealing of the jar is eflected without directly closing the channel and openings to the interior of the jar, and so that when the sealing medium has been removed, said openings are fully exposed and the channel substantially cleared of the sealing medium.

A represents a jar, can, or other receptacle of any desired shape and material. This jar has an annular grooved or channeled flange 2 at theltoppthe inner side of the channel being approximately vertical, and

the outer-side beveled or inclined so that in cross section the groove is pearance.

The cover B has a downwardly pro ecting V-shaped in apcircumferential flange 4 which is adapted to Specification of Letters Patent.

Application filed May 7. 1907- Serial No. 372.352.

Patented Jan; 14, 1908 which may be made of manila, hemp, cotton,

or other fabric, of such diameter as will fit within the V-sha ed channel exterior to the cover flange. is cord may be made of such length as to coil once or twice around within the channel, and preferably-has a sufficiently greater length, so that itmay be brought across the top of the cover, as

shown at 5 The cover may have one or more grooves or channels formed radially, or otherwise, in its outer surface within which the cord will lie depressed and out of the way,

and by making a depression or groove 8 transversely across this cord-retaining channel, the cord will be sufliciently exposed at that point, so that the thumb and finger may be used to grasp it, and pull it out of its place, and out ofthe sealing channel. This cord may, if desired, have a thin'wire core which will stiflen it sufficiently so thatwhen the cord has been prepared and coiledto the proper size to fit the channel around the 'ar,

it will remain sufficiently rigid to be appl ed,

but the sealing coating is ordinarily sufiicient. number of these sealing devices tobeused on jars or cans having the sealing channel'of} anydiameter, and such cords may be prepared and kept in readiness for workupon various sized jars.

The cord" is prepared by incorporating some waxy substance withits vflber, preferably by immersing it in the melted wax or material; then stripping and pressing any excess of Wax from it so that substantially no wax adheres to its exterior, and in thisvstate it would not be suitable for sealing. A rub- It is thus possible to prepare a'large 1 i ber coating might also be applied. The cord thus treated is placed in a former groove of the size of the groove in the jar upon which it is to be used, and isthen pressed into thisgroove. The end which is to be subsequently used for detaching the cord, being extended in its norma condition.

either cooked, or afterward from the groove, and preferably toward the center of the ring so as to fit its subsequent position upon the jar, as previously'des'cribed.

The cord having thus 'been fitted-.1150 the groove, and pressed to the bottonil thereof, is coated with melted wax or sealing material, which forms a top adherent to the u er surface of the cord, as shown at 6., lie wax onl covers that portion of the cord lying wit in the cove, the extension'being left In order to seal one, or any of-jars, the fruit or other material is plac cooked and the ant-expelled mj-the usual ring is then laced in the groove between... he outside of t e cover flange and the interior beveled incline of the groove of mg arms 10 which arms are bent toward the jar, with the free end of the string seated y .the rooves of the cover. The cord is-sat e'd in t e sealinggroove either by the fingers, or preferably by means of a seating device. Such a device is shown in Fig. 4, in which 9'is a flanged ring of such size as to fit the top of the can, having upwardly extend the center, andform orv support a ring 11. Through this ring is slidable a stem 12 having'at the lower end a ring 13. This ring is of such'size as to just fit the groovewi which'the-sealing cord lies, and by ressing .upon a handle upon the upper em of the stem, the ring 13 is caused to seat. the sealing cord in the groove or channel.

.mal

- cord Which is substantially uncoated, is fitted A spring 14 vmay connect the exterior frame or standard with the slidable ringcarrlying stem in such a manner as to norbridge above the cord, andefi'ectually sealing the jar when it has sufficiently cooled to allow the medium to harden. 'In order to open or unseal the jar, it is only necessary to grasp'the exposed part 59-of the cord, and strip it out of the groove in which it rests.

This breaks and tears away the superposed wax, thus clearing the groove, and when the cord has been removed from the groove, the

unsealing opening 7 will be exposedso as'to allow air to be admitted and the vacuum brok'emkafter which the top may be readily raise it above the level of the can p, and it will be returned to this position bythe spring at any time'after it and the compres-r'a removed. By this method of sealing, I prevent the sealing medium from filling and adhering to the lower part of the groove of the jar, and insure its being substantially stripped out to leave the groove clear and the vacuum breaking openings fully exposed.

It will'be understood that in the preliminary treatment of the cord, it. may be impregnated with a thin solution of rubber, in place of other material, and this will serve equally well, and will also prevent the lower surface of the cord from adhering when the cord has been sealed in place.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. The combination with a jar or can and a cover therefor, said cover having a depending flange with grooves on the under side thereof connecting with the interior of the jar, of a sealing medium for the cover, said medium including a flexible, com ressible cord bent to fit the sealing groove 0 the jar, having its lower surface substantially nonabsorbent and having a coating of sealing material adherent to its u )per surface.

- 2. The combination with a jar or can having a sealing groove or channel and a cover for'the jar having a depending flange adapted to enter the groove of the jar, said flange being provided with grooves in its underside leading to the interior of the jar, of a sealing medium, said medium consisting of a substantially flexible compressible cord coiled to fit the sealing groove or channel of the jar, 'with its lower surface substantially non-adherent, and its uppersurface carrying a fusible sealing material of such length as to fill the groove of the jar, said cord having an .uncoated extension capable of extending across and being seated upon the jar cover. peculiarstructure i 3. A jar and'can sealing and'unsealing device consisting of a coiled flexible cord having a semi-coating of fusible sealing material,

a jar having a groove around its periphery, a cover having a flange fitting the inner portion of the groove, and having channels made to communicate with the interior of the jar, said cord being seated in the bottom of the groove and covered by the fused and subsequently hardened medium, and means by which the cord and sealing medium are removed to expose the channels. I

4. A jar or can having a peripheral groove. or channel at the top, with the outwardly inclined outer wall, a cover having a flange fitting the inner portion of said groove, said flange having openings communicating with. the interior of the jar, a; compressible cord fitting the groove or channel, having its lower surface substantially non-adherent,

and the upper surface carrying a coating of sealing material, and an extension of said cord whereby it may be removed from its seat.

5. A is? or an having it peripheral groove ei'ennd its top, aooves having a flange fitting the inner eortien of said groovejend forming therewith s.- i-sl1eped ehennel, said flange having channels in its underside leading to the intelior of the jfil, end said. cover having groo iesformed in its tee, a compressible cord bent to the'eiroumterential groove on the jar, said cord having its lower surfacenon-edh erent, and a coating of fusible sealing materiel upon its upper surface filling the circumference of the groove, said cord having an uncoetd extension seated in one of the grooves or channels on the top ofthe cover.

In testimony whereof I have hereunto set 15 my hand in presence of two subscribing Witnesses.

JARROT L. ROLLINS,

Witnesses:

E. H. HONN, W. B. FOWLER. 

